Multiple-movement device for transmitting and increasing motion



l 4 Sheets-Sheet 1. J. A. ZEEEE. MULTIPLE MOVEMENT DEVICE EOE TEANSMITEING AND INGEEASING MoToN.

PaJtentedApr. 29, 1890.

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J. A. ZBRBB. MULTIPLE MOVEMENT DE VICE EUR TRANSMIITING AND INCREASING MOTION.

.No.4426.610. PatentedApLZQ, 1896.

(No Model.) 4 sheets-smelt s.

l J. A. ZERBE. MULTIPLE MOVEMENT DE VICE EUR TRANSMITTING AND INCREASING MOTION.

No. 426,610. v N PanenfedApr. 29, 1890.

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JOHN A. ZERBE, OF DODGE CITY, KANSAS.

MULTIPLE-MOVEMENT DEVICE FOR TRANSMlTIlNG AND INCREASlNG MOTION.

SPECIFICATION forming' part 0f Letters Patent N0. 426,610, dated April 29, 1890. Application filed August 16, 1889. Serial No. 321,016. (No model.)

To all whom, it may concern.-

Be it known that I, JOHN A. ZERBE, of Dodge City, Ford county, Kansas, have invented certain new and useful Improvements in Multiple-lllovement Devices for Transmitting and Increasing Motion, of which the following' is a full, clear, and exact description, reference being had to the accompany drawings, forming a part hereof.

My invention relates to a device for transmitting power, having for its object to increase the length of the stroke of a pistonrod, drive-rod, the lifting-rod of a pump, or any other reciprocating rod; and, furthermore, the object ofmy invention is to enable the power of such reciprocating rod to be transmitted in any desired direction or directions.

In the drawings which illustrate the manner of constructing and applying my invention, Figure l is a top plan view showing the position of the parts before the stroke is made. Fig. 2 is a central longitudinal section showing the parts in the same position as in Fig. l. Fig. 3 is aV plan view showing my device connected to a cranlowlieel, with the parts as seen when the stroke is completed. Fig. 4 is a detail perspective view showing the construction ofthe elbow-joint which `is employed to connect the members of the extension motor-rod. Fig. 5 is a detail view of the rackbar M. Fig. 6 is a similar view of the gearwheel and the shaft through which it is secured. Fig. 7 is a similar view of the movable guide-plate. Fig. S is a similar view of one of the guide-blocks. Fig. 9 is a view of one of the flanged guide-rollers. Fig. lO is a plan view of the improved motor-bar connected directly to a crank-wheel, as in Fig. 3, as seen when about to commence a new stroke. Fig. ll is a perspective view of the stationary slotted bed-plate. Fig. l2 is a detail view of the guide-plate I5, having shorter guide-slots to adapt it to be secured permanently to the bed-plate. Fie. I3 is a detail view of the distributin0`spider which is employed to trans mit the power in various directions; and Fig. le is a similar view, partly broken away, of the slotted guide for'said spider.

The extension motor device is composed of a series of intersecting bars C, which are pivoted together at their extremities, as seen at c, and at their centers,as seen at c', and from the last-named intersections depend guideblocks a, which operate in the central guideslots F of the bed-plate A. The bars O at one end of the motor device do notintersect at their centers, but are connected at their ends by the vertical bolt I, which also passes through and secures in place a guide-block a, which travels in the guide-slot F, and the intersect ing bars at the opposite end of the motor device are extended to form the power-arms O, which are provided at their extremities with iianged guide-rollers I?, which operate in the diverging guideslots D D of the movable guide-plate B.

In the drawingsI have shown myimproved extension motor device connected to the piston-rod II, which operates in the cylinder 72., in order to illustrate the manner of using the same, and I have also shown the same, as in Figs. 3 and l0, connected to a crank-wheel. l,

mounted on the shaft 2 by means of crank 3 and pitman G; but these parts form no element of my invention. The piston-rod is connected to the fulcrunrpin d, upon which the power-arms are pivoted, said pin being also employed to secure a guide-block a in place. A slack or connecting bar E is arranged above the motor device and is secured thereto at one end by the fulcrum-pin d, the opposite end of said bar being slotted, as seen at E', to receivethe bolt I, whereby when. said motor device is extended the bolt I travels in the slot E.

Beneath the bed-plate is arranged a rackbar K, 4which is secured at one end to the motor device by the pin d', and is secured at its opposite end to the guideeblock a by means of bolt I. This rack-bar meshes with a pinion L, mounted on a horizontal shaft f, and the pinion in turn meshes with a rack M, which is secured at one end to the guideplate B by means of the threaded extensions e', which slide in the parallel guide-slots Gr G of the bed-platc, the front end of said rack being also provided with threaded extensions e, engaged with suitable nuts and operating in slots G G. It will be seen that the forward.

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motion of .the piston being `communicated through the motor device to the rack-bar K Will canse a rotation oi' the pinion L, thereby moving the rack M in the opposite direction, thereby sliding the guide-plate B rearwardly andcausing its divergent slots D to draw the free ends of the power-arms C toward each other, thus extending the motor device. Obviously the forward end ot the motor device will by this combined motion travel a greater distance than the piston-rod, said distance being limited by the length of the slot E. The bolt I travels during one stroke from t to sor froms to t, said distance being the difference between the stroke of the motor-rod and the stroke ofthe piston.

The spider, which is connected to the end of the motor-rod to distribute the motion in various directions, consists of a series of intersecting bars connected in the same manner as those of the motor device, its arm O being connected to the end of the motor-rod by means of the slack-bar E, and its other arms O2, O3, and O4 being connected together by the intersecting bars 'n n, which, intersecting at an', convey power to all of said arms. .A frame ASis employed to guide the movements of the arms, the same being provided With slots A2 to receive guide-blocks, as illustrated in connection with the motor device. The arm O is provided at its eX- tremity With pins 4 5, Fig. l, which operatein the slot E', and the bolt I, coming in contact With the end of the arm O, contracts the spider, While the end of the slot E on the return-stroke, coming in contact With the pin 4 on the arm O', extends the same by draW- The spider is permanently pivoted at its center to thecentral portion A4 of the guide-frame by means of the pivot When only a moderate extension ot' the motor device is required, the rack-bars and pinion are dispensed with and the slotted plate B is permanently iiXed to the bed-plate in such a position as to guide the movements of the free ends of the power-arms, and as in this case the movement of the motor device is less the slots D vot the plate B are made much shorter, as shown in Fig. l2 of the drawings.

The joint Which I prefer to employ to connect the members of the motor device is shown clearly in Fig. 4, and it consists, essentially, in rounding and halving the adjacent ends of the adjoining members and connecting them by a pivot c, the outer edges of the rounded ends T being chainiered or beveled, as seen at fn, to tit in correspondingly-shaped shonlders of the adjoining member. -With this joint there is less liability to spring` away from the bed-plate and the device operates with greater trueness and certainty.

The operation of the invention Will now` be seen: As the piston-rod advances, the slackbar and the extension motor device are forced forwardly, .the guide-plate is carried rearwardly, and the flanged guide-rollers P, operating in the divergent slots D D, are drawn toward each other, thereby extending the motor device and increasing the stroke, which is communicated directly to the pitman, as shown in Figs. 3 and l0, or is communicated to a distributing-spider, the various arms of Which may be connected to as many pitmen or other bars, rods, or cranks in a manner to be determined by the obj ect to be attained.

In Fig. 13 is shown a spider, which, in addition to the four arms shown in Fig. 1, is provided with an upper arm O5 and a lower arm 0, the inner ends of Which are connected by means of the arms w w to slotted lugs s s. the same as that described in connection With the spider shown in Fig. l.

The guide-blocks a are secured tothe niotor device by means of verticall pins or rivets q q, and said blocks are iianged to work in the slot F, and thereby hold the motor-bar in its proper position.

The object of the slack-bar is to take up all slack or lost motion caused by the Wear of the pin I in the slot E', and also to strengthen the motor device.

Small guide-blocks g g on the under side ot' the movable guide-plate B operate in the parallel guide-slots G G of the bed-plate, as shown in dotted lines in Figs. l and l0.

Having thus described my invention, I claiml. The combination of an extension motor device adapted to be connected to a pistonrod or other reciprocating bar and provided with power-arms, and the guide-plate provided with divergent slots to receive guiderollers on the extremities of said power-arms to extend and contract the motor device, substantially as specified.

2. The combination of an extensible motor device consisting of intersecting bars pivoted together, the movable guide plate geared thereto to movel in the opposite direction, and the power-arms on the motor device, provided with guide-rollers to operate in divergent slots in said guide-plate, substantially as speciied.

3. The combination of the extension motor device consisting of a series of intersecting pivoted bars, the rack-bar K, carried by said motor device, the pinion, the slotted guideplate connected to a rack-bar M, Which mesh es With the said pinion, and the power-arms on the motor device, provided with guide-rollers to operate in divergent guide-slots in the said plate, substantially as specied. v

4. The combination of the motor device consisting of a series of intersecting pivoted bars C and carrying depending guide-blocks a', the slotted bed-plate, the movable guide-plate provided With divergent slots D andgeared to said motor device, said guide-plate being provided With lugs to 'operate in slots of the 'Ihe operation of this form of spider is IOC IIO

bed-plate, and the power-arms-provided with guide-rollers to operate in said slot-s D, suhstantially as specified.

The combination of the extension motor device, as described, and provided With powerarms C', the slack-har connected to the motor device and slotted to receive a rod I on the same, and the guide-plate geared to the motor-rod and provided with slots to receive `guide-rollers on the extremities of the powerarms, substantially as speciiied.

6. The combination of the extension motor device, siaciebar E, provided with slot E', and spider hav-ing a series of divergent arms consisting of interseetin bars and provided with pins to operate in the slot E', snbstan tiaily as specified.

7. The combination of the extension motor device provided With poiver-arms C, the .slidine; slotted `euideplate connected to said arms and `reared to the motor device to operate in the opposite direction thereto, the slotted slack-har E, the slotted guido-frame A3, and

the spider mounted on said frame, having` divergent arms and connected to the motor device, substantially as speciiied.

S. The combination of the bed-piate A, provided vvith parallel guide-slots G G F, the sliding guide-plate provided with divergent slots D I) and having` lugs g g to operate in said slots G G, the motor device consisting of intersecting pivoted bars and provided with guide-blocks ci to operate in the slot IF, said motor device bein g geared to said guide-plate and provided with power-arms having guiderollers to ope 'ate in the slots D thereof, and a slack-bar connected to the motor device and provided at one end with a slot to receive a guide-boit I, substantially as specified.

In testimony whereof I aiiix my si gnature in presence of two witnesses.

JOHN A. ZERBE.

IVitnesse. 2

F. G. FISCHER, R. A. BALDnRsoN. 

